RKS

>90%

rowred

Heat recovery units

VERY HIGHT EFFICIENCY WITH INTEGRATED CONTROL

from 100 to 2.300 m³/h

Sheet metal supporting frame and double shell curtain panels externally pre-painted, fully removable with average 20 mm thick internal thermal and acoustic insulation.
High efficiency aluminium plated heat recovery, Eurovent certified, of static type with aluminium plate, and airflows separated by special seals.
G4 efficiency class air filters, easily removable from every side (bottom, side, top) allowing their periodic cleaning; as an option, M6-F7-F8 efficiency class filters are available.
Ventilating sections consisting of double suction front blades centrifugal fans directly coupled to single phase engine of electronically controlled Brush less EC type.
The unit is complete of electronic control panel.
Galvanized steel condensate drain tray, with discharge from the bottom side.

  • Round adapter for circular duct

    BCC

    Pre or post electric heater

    SKE

    Water cooling/heating section  

    SAF

    Direct expansion section

    SED

    Adjusting damper

    SKR

    Flexible connection

    GAT

    Roof cover

    TPR

    Class M6 compact filter

    FC6

    Class F7 compact filter

    FC7

    Class F8 compact filter

    FC8

    External hood with network

    CFA

  • Humidification/adiabatic cooling section 

    HCP

    Solenoid valve

    VSA

    By-pass system for free-cooling

    BPL

    Supports H=180 mm

    PD2

    3 way valve with actuator 

    V33

    Filters differential pressure gauge

    PSTD

    On/off damper actuator

    SSE

    Room hygrostat

    HAS

    Ductable hygrostat

    HCS

    Differential pressure transducer

    DPS

    Duct-type CO2 transducer

    AQS

RKS

Fan speed

 

10

14

25

40

Airflow

Nom

m³/h

500

1000

1500

2000

Max

750

1500

2100

2300

Min

100

500

750

1000

External Static Pressure

Nom

Pa

185

225

235

270

Max

67

104

135

65

Min

376

363

350

467

1m sound pressure level

Nom

dB(A)

52,0

64,0

63,0

62,0

Max

53,0

64,0

62,0

61,0

Min

52,0

64,0

63,0

62,0

Nom motor power

 

W

2 x 120

2 x 310

2 x 310

2 x 310

Maximum total current

 

A

2 x 0,50

2 x 3,20

2 x 3,20

2 x 3,20

Max. total power absorbed

 

W

2 x 0,20

2 x 0,75

2 x 0,75

2 x 0,75

Specific fan power

 

W/(m³/s)

1086

1261

1203

1291

2009/125/EC ErP Compliance

 

2015

2015

2015

2015

Fan speed

 

Min degree of Protection

 

 

IP 32

IP 54

IP 54

IP 54

Min temperature class

 

 

F

F

F

F

Power supply

 

V-Ph-Hz

230-1-50

Efficiency (1)

Nom

%

90,0

90,1

90,1

90,0

Max

88,6

88,7

88,9

89,5

Min

95,3

92,5

92,5

92,4

Recovered heating capacity (1)

Nom

kW

4,10

8,20

12,3

16,3

Max

6,00

12,1

16,9

18,7

Min

0,90

4,20

6,30

8,40

Supply temperature(1)

Nom

°C

17,3

17,3

17,3

17,3

Max

16,9

16,9

17,0

17,2

Min

18,7

18,0

18,0

18,0

CONFORMITY TO EU 1253/2014

 

 

 

 

 

 

Recovery efficiency

 

 %

79,9

80,5

80,3

80,2

Filter correction factor

W/m³/s

-360

-360

-360

-360

SFP int limit

W/m³/s

1206

1208

1181

1159

Total internal air pressure drop (3)

Pa

360

450

480

495

Overall fan static efficiency (4)

%

42

39

42

43

SFP int

W/m³/s

857

1154

1143

1151

Water cooling accessory SAF

 

 

 

 

 

 

Rows

 

 

3

3

3

3

Air pressure drop

Nom

Pa

40

33

33

30

Total cooling capacity (2)

Nom

kW

4,00

6,70

12,3

16,1

Sensible cooling capacity (2)

Nom

kW

1,92

3,22

5,90

7,73

Supply temperature (2)

Nom

°C

15,9

17,7

15,6

15,8

Water flow rate (2)

Nom

m³/h

0,69

1,15

2,12

2,77

Water pressure drop (2)

Nom

kPa

8

6

13

14

Electric pre or post-heating accessory SKE

 

 

 

 

 

 

Stages

 

 

1

1

1

1

Heating capacity

 

kW

0,50

1,00

1,50

2,00

∆T air side

Nom

°C

2,9

2,9

2,9

2,9

Pressure drop

Nom

Pa

8

8

7

10

Power supply

 

V-Ph-Hz

230-1-50

High efficiency filters

 

 

 

 

 

 

FC6 Pressure drop

Nom

Pa

9

41

32

31

FC7 Pressure drop

Nom

Pa

46

97

76

74

FC8 Pressure drop

Nom

Pa

63

135

105

102

Round adapter for circular duct BCC

 

 

 

 

 

 

Diameter

mm

315

315

400

450

(1) Outdoor air -7°C 80% RH, ambient air 20°C 55% RH
(2) Outdoor air 32°C 50%, ambient air 26°C 50% RH, water inlet 7°C
(3) At dry conditions : outside air temperature 5°C, room air temperature 25°C
(4) Including motor & speed controller efficiency

The table lists the sound power values (SWL) in octave bands and totals; it also indicates the values of sound pressure level (SPL) at 1 m, 5 m and 10 m at supply, return and at the outside of the unit. All values refer to the operation of the ducted unit at FULL speed and at the nominal flow rate.

RKS

SWL [dB] octave band [Hz]

SWL

SPL Supply

SPL Return

SPL Outside

1 m

5 m

10 m

1 m

5 m

10 m

1 m

5 m

10 m

63

125

250

500

1000

2000

4000

8000

dB

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

10

90,0

85,0

75,0

70,0

69,0

67,0

63,0

59,0

91

76

62

50

45

60

48

43

46

34

29

14

93,0

89,0

79,0

74,0

72,0

70,0

67,0

64,0

95

79

64

53

48

61

50

45

49

38

33

25

88,0

86,0

79,0

74,0

72,0

72,0

68,0

66,0

91

79

64

53

48

61

50

45

49

38

33

40

84,0

85,0

79,0

74,0

73,0

74,0

71,0

68,0

89

80

65

54

49

63

52

47

51

40

35

RKS

10

14

25

40

A

mm

1175

1450

1700

1700

B

mm

900

1230

1350

1350

C

mm

410

410

490

630

L

mm

217

235

235

235

H

mm

110

210

210

210

L1

mm

331

331

502

502

H1

mm

268

268

347

487

U

mm

120

120

120

120

Weight

kg

80

120

175

220

RKS

LC2

Manual selection of 3 speed

Automatic/manual selection of speed

EC fans management

Manual ON-OFF

Cool/change over valve management

SAF+V33

Heat valve management

SAF+V33

Cool/change over valve management

SAF

Heat pump management

SAF

Defrost recovery management

Water coil anti-freeze management

ON-OFF electric heater management

SKE

Filter pressure switch management

PSTD

Management of ventilation with CO2 probe

AQS

Management of ventilation with one or two pressure sensors

DPS

Free-cooling damper management

BPL

Management of motorized dampers

SKR+SSE

Management of humidification

HCS+HCP+VSA

HAS+HCP+VSA

Management of Boost by keyboard

Management of adiabatic cooling

HCP+VSA

Alarms management

Post ventilation

Weekly programming

Remote ON-OFF

Digital input for PIR occupancy

Digital input for fire alarm

Mode change (hot/cold) from digital input

Minimum thermal hot water temperature

Remote display with internal sensor

BMS Modbus RS485 protocol

Reference diagram

Click here

Contact form

RKS